blackboard icon vector sign and symbol isolated white background logo concept |
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| navigate by keyword : art audience back black blackboard board book bus business classroom conference design education graphic hand handdrawn icon icons isolated lecture lesson line logo meeting office pencil people png presentation reading room school science seminar sign sketch speaker student study symbol table teacher texture training vector web white |
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| Blackboard icon vector isolated on white background for your web and mobile app design, Blackboard logo concept |
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